Boiler.



J. E. 'ANGBLL.

BOILER.

APPLICATION FILED AUG.1, 1910.

Patented Oct. 20, 1914.

4 SHEETS-SHEET 1.

-J. E. ANGELL.

BOILER.

APPLICATION FILED AUG. 1, I910.

Patented Oct. 20, 1914.

, 4 SHEETS-SHEET 2.

J. E. ANGELL.

BOILER.

APPLICATION FILED AUG.1, 1910.

1,114,093. Patented Oct. 20, 1914.

4 SHEBTSSEEET 3.

- I fizz/6%) E Ma 6%,

i we Patented Oct. 20, 1 914.

4 SHEETISSHEET 4.

J. E. ANGELL.

BOILER.

APPLICATION FILED AUG. 1, 1910.

JOHN E. ANGELL, OF ST. LOUIS, MISSOURI.

BOILER.

. Specification of Letters Patent.

Patented Oct. 20, 1914.

Application filed August 1; 1910. Serial No. 574,984.

To all whom it may concern Be it known thatI, Joan E. ANGELL, a citizenof the United States, residing at St. Louis, Missouri, have invented newand usefut Improvements in Boilers, of which the following is aspecification.

This invention relates to boilers and soot blowers, and its object is toprovlde an 1m- 7 proved and superior ap aratus whereby jets of dry steammay be driven against the surfaces in the boiler and in the boilersetting which hold accumulations of ashes, soot-and other products ofcombustion.

Another object is to provide an apparatus for the purpose mentioned,oomprlsing a steam jet pipe, and an out-let therefrom for carrying oilallmoisture and other entrained substances from the steam, so that onlydry steam will be ejected against the exposed parts of the boiler andboiler setting.

Another-object is to provide a plurality of pipes for carrying the steamused in blowing the soot, ashes, etc., in combination with dischargedevices for carrying oli the entrained elements from the steamwherebyonly dry steam will reach the destination,

and traps automatically controlling the outlet passages from thedischarge devices.

Where moisture is permitted to enter through the blower such moisture,coming into contact with the soot and ashes, etc., forms a scale onthetubes and other exposed parts of the boiler, which impairs theefiiciency of the boiler the same as does the formation of scale on theinterior of the tubes.

Another object of the invention is to arrange the apparatus incombination with a device for accumulating and retaining and ultimatelydischarging the moisture and prevent it from being thrown'into contactwith the soot and ashes, etc., on the tubes and other exposed parts ofthe boiler. The undesired mixture of moisture and oil and soot, inaddition to forming a scale, also results in'the generation of sulfuricacid and causes a deterioration of the parts exposed to the action andeifects thereof. 7 Other objects will appear from the followingdescription reference being made to the accompanying drawings, inwhich-- Figure. 1 is a side elevation ofa boiler and fire-chamber, witha portion of the walls of the latter broken away, showing my inventionarranged in connection therewith.

Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1. Fig. 3 isan illustration of the chamber for receiving the moisture, and thedevices for changing the direction of the jets. Fig. 4-is a sectionalview of the moisture chamber and a part of the jet pipe communicatingtherewith. Fig. his

a plan view of the moisture chamber and the devices for changing thedirection of the jets, with a part of the steam-jet pipe shown insection. Fig. 6 is a cross sectional view of the'steam-jet pipe. Fig. 7is a view of a boiler having the steam pipe disposed across the endthereof. Fig. 8 is a sectional view thereof. Fig. 9 is a viewillustrating the application of my invention 1 for blowing soot, ashes,etc., from a steam superheater, as well as from thetubes and otherexposed parts of the boiler.

The drawings illustrate my invention in combination with a water tubeboiler, in which the walls of the fire chamber are designated by A andthe water tubes by B. I

.and which to a greater or less extent, insulate said pipes from theheat. For this purpose steam jets have been 'directed against and alongthe surfaces of the pipes with considerable success. The use of steamfor removing the deposits has'been attended with more or less difiicultycaused partly 'or entirely by the elements entrained 1n the steam, suchas water, oil, etc. My present invention includes a novel form ofdelivery or jet-pipe and a chamber for receiving and discharging themoisture, and

which are arranged and combined in such a way as to distrain from thesteam practically all of these impeding and retarding elements which areculpable for the limitations and difficulties attending the use of sootcleaners at present in commercial use which employ steam as the cleaningagent.

- In the embodiment shown in Figs. 1 and,

2,-the steam-jet pipes 1 are supported transversely of the tubes B.There may be as many of these pipes as desired. In Figs. 1 and 2, two,of-them are shown, one near each end. But the number and positions ofthe pipes may be varied to conform to the special requirements of. thedific'erent types of boilers. The pipes 1 are revolubly supported inbearings 2 (Figs. 4 and 5), located in the walls of the fire-chamber Aand'may be held from longitudinal movement by collars 3 encircling saidpipes against the interior ends of the said bearings, and by exteriorflanges 4:. The said pipes 1 may be composed of sections as shown inFig.2, connected. and secured together as shown in Fig. 5.- These pipesare of peculiar construction, being provided with two diverging .orflaring flanges 5 between which the steam-jet holes 6 are formed. Theseflanges form troughs or channels adapted to catch any water or otherelements that may be entrained with the steam, so that only dry steamwill be expelled throu h the holes 6, thereby avoiding those diflicuties which are encountered in other soot cleaners which employ steam asthe cleaning agent. It is preferable that the pipes 1 be mounted in aslightly oblique or inclined position with the ends at which the steamenters below the opposite ends, so that the water, etc., will flow to anoutlet at the entering ends of the pipes. \Vhere two of the pipes'l areemployed it is preferable that one of them be above and the other belowthe tubes B so that the steam-jets will be directed against all surfacesof the said tubes. These pipes ma be rocked to direct the steam jets indi erent directions. The upper pipe has a sprocket wheel 7 thereon andadepending chain 8 on said wheel, said chain constituting a handlewhereby theoperator mayrock the pipe. A pointer 9 on the wheel indicatesthe position of the pipe and informs the operator of the direction ofthe jets. The lower pipe being within'reach of the operator does notrequire the wheel-and-chain device, but an ordinary handle '10 may beused, said handle also .acting as an indication to guide the user indirecting the steamets.

Steam is brought to the pipes 1 through pipes 11 and chambers 12arranged to receive and discharge the moisture. These chambers are ofduplicate construction. A preferred construction comprises a chamber 12having an oblique partition 13,. and a second partition 14 which isnearly vertical, and is of larger area than the entrance to the pipe 1.Said partitions form a tortuous passage through which the steam passesin order to enter the jet pipes leading from said chamber. A grid orbreak 15 may be mounted between the two partitions and serves to detachfrom the passing steam the greater quantity of the entrained elements,-the remainder being caught and detached by the flan es 5 in the pipes 1.The chamber extends elow the end of the pipe 1 so that the accumulatedelements will not flow into the pipe, but may be carried off through anoutlet or waste pipe 16.- The pipes. 16 from the various moistureaccumulation chambers preferably lead to a common outlet pipe 17 whichcontains a trap 18 to close said pipes and prevent the escape ofsteam'therethrough. Each of the pipes 11 contains a valve 19 by whichsaid pipes may be closed and the steam excluded from the chambers 12.and pipes 1. The connection between the pipes 1 and the chambers 12permit the pipes 1 to be rocked to change the direction of dischargeofthe steam-jets.

In using this apparatus the valves 19 are opened and the steam will beejected through the jet holes 6, in the pipes 1. The pipes 1 may berocked so as to direct the steam jets against all of the tubes B and,because of the peculiar arrangement of the flanges 5,- the water, etc.,caught in the said pipes will be prevented from passing through theholes 6, but will flow back to the chambers 12 and thence to outlet. Thevalves 19 may be closed after the tubes have been freed from theaccumulations thereon. This device does notinterrupt the use of theboiler, but may be, and preferably should be, used at times when thefurnace is going so that the combustion will assist in disposing of thedetached soot, etc.

In the embodiment shown in Figs. 7 and 8 a pipe 20 receives steam fromthe supply 20 is located outside the fire-chamber and has a series ofpipes 23 opening into the usual tube-bolts 24 by which the steam jetsare conducted to the tubes B. The pipes 23 maybe arranged in any desiredrelation so as to obtain the greatest efficiency from the steam jets.The. accumulated elements may be removed from the chamber 22 through asuitably controlled outlet 25.

In Fig. 9 I have shown my invention arranged to blow the soot, ashes andother products of combustion from the tubes B, and from a superheater-C. In this arran ement the pipe is revoluble so as to direct t e steamjets against all surfaces on which the soot, ashes, etc., accumulate.

. I am aware that there may be various various arrangements of the partsthereof, without the least departure from the spirit and scope of theinvention, I do not restrict myself to the identical structures shown,but

What I claim and desire to secure by Letters-Patent is Y 1. In a sootcleaner, a steam-jet ing outlets through one side thereo supplypipe fordelivering steam to said jet pipe, a chamber connecting said supply pipewith one end of said jet pipe, an oblique partition in said chamber, asecond partition in said chamber of larger area than the entrance tosaid jet pipe, said partitions forming a tortuous passage in saidchamber between said supply pipe and said jet pipe, and an outlet fromsaid chamber below said partipipe havtions, substantially as described.2. In a soot cleaner, a steam-jet pipe, a

pipe 21 and moisture chamber 22. The pipe other embodiments of myinvention, and

a steam supply pipe for supplying steam to said jet pipe, a chamber atone end of said jet pipe for receiving condensed moisture dischar edfrom said jet pipe, parts in said cham er forming a tortuous passagebetween said supply pipe and said jet pipe, a passage for withdrawingcondensed steam from said chamber, and means for rocking said jet pipe.

3. In a soot cleaner, a steam-jet pipe mounted in an inclined position,a pipe for supplying steam to said jet pipe, a chamber connected withand extending below the lower end of said jet pipe for receivincondensed moisture discharged from sald jet' plpe, a passage from. thelower end of said chamber, and automatic means for re lating the flow ofthe condensed molsture through said passage, substantially as described.

4. In a soot cleaner, a steam-jet pipe, a trough in said pipe arrangedto collect condensed moisture, a pipe for supplying steam to said jetpipe, a chamber supported by said steam supply pipe and connecting saidsupply pipe with one end of said jet pipe to receive moisture dischargedfrom said jet. pipe, a discharge outlet from said chamber, and a trapcontrollin said discharge outlet, substantially as speci ed.

5. In a soot cleaner, an inclined jet pipe, a chamber connected to thelower end of said jet pipe, a trough in said jet pipe for accumulatingand conducting the moisture in said pipe, a steam supply pipe openinginto said chamber, a partition wall supported within said chamberbetween the supply pipe and the jet pipe, and an outlet from saidchamber, substantially as specified.

6. In a soot cleaner, a jet pipe revolubly mounted in an inclinedposition, a chamber connected to the lower end of said pipe, a steampipe constituting a support for said chamber and opening into saidchamber for supplying steam to said jet pipe, avertical partition insaid chamber adjacent to the inlet of said supply pipe and the outlet tosaid jet pipe, and an outlet from said chamber, substantially asspecified.

7. In a soot cleaner, a jet pipe mounted in an inclined position, atrough formed in said pipe,..means for rocking said jet pipe, a steampipe for delivering steam into the lower end of jet pipe, and an outletpassage for discharging condensed moisture accumulated in said troughand conducted thereby to the lower end of said jet pipe, substantiallyas specified.

8. In a soot cleaner, a jet pipe mounted in an inclined position, meansfor rocking said jet pipe, a chamber connected to the lower end of saidjet pipe and arranged to receive the condensed moisture, a pipe fordelivering steam into said chamber and thence into said jet pipe, adischarge outlet from said chamber, and a trap controlling saiddischarge outlet, substantially as specified.

9. A soot cleaner for boilers provided with flues comprising a jet pipemounted transversely of said flues, flaring walls in said jet pipeconstituting a longitudinal trough formed integral with the interior ofsaid jet'pipe, a plurality of steam outlets arranged at the bottom ofthe trough and extending through said jet pipe, wall, a chamber at oneend of said jet pipe, an ad justable connection between said jet pipeand said chamber, means for manually rocking said jet pipe, anindicating device for indicating the position of said jet pipe, a steamsupply passage entering said chamber opposite the end of said jet pipe,and a partition arranged in said chamber between the adjacent ends ofsaid steam supply pipe and said jet pipe, substantially as specified.

10. A soot cleaner comprising a jet pipe provided with a series ofopenings extending longitudinally along one side thereof, flaring wallsformed in said jet pipe at either side of said openings and divergingoutwardly therefrom, a chamber at one end of said jet pipe, a steamsupply pipe entering said chamber opposite to said jet pipe, and avertical partition wall arranged in said chamber between the adjacentends of said steam supply pipe and said jet pipe around which the steammust flow to enter said jet pipe from said steam pipe, and a dischargesupply pipe leading from the lower end of said chamber, substantially asspecified.

In testimony whereof, I have signed this specification, in the presenceof two subscribing witnesses.

JOHN E. ANGELL. Witnesses:

FRANKLIN MILLER, J. D. RIPPEY.

